He doesn't mean that you don't know the JavaScript framework of the week. He means if you have not been writing any code regularly recently (because you have b

He doesn't mean that you don't know the JavaScript framework of the week. He means if you have not been writing any code regularly recently (because you have been a Manager or Architect or whatever) then your programming skills will be rusty. You will struggle with FizzBuzz because you have have spent less than 5 hours programming in the last 12 months.